An antenna system with co-located dipole antennas with mutually-orthogonal polarization is disclosed herein. The two antennas have planar geometry for the entire antenna and the two antennas are co-located in two mutually-orthogonal planes which provides an antenna solution for wireless communications with high isolation between the two antennas and polarization diversity in a minimum volume occupied. The two antennas operate in the same wireless communications band or in different bands.
Legal claims defining the scope of protection, as filed with the USPTO.
1. An antenna system with co-located dipoles with mutually-orthogonal polarization, the antenna system comprising: a vertical dipole antenna comprising a dielectric substrate, a plurality of dipole arms, an antenna balun, a metallization section and a feed point; a horizontal dipole antenna comprising a dielectric substrate, a plurality of dipole arms, an antenna balun, a metallization section and a feed point; wherein the vertical antenna and the horizontal antenna are co-located in two mutually-orthogonal planes; wherein a first dipole arm of the plurality of dipole arms of the vertical dipole antenna is located on one side of the horizontal dipole antenna and a second dipole arm of the plurality of dipole arms of the vertical dipole antenna is located on an opposing side of the horizontal dipole antenna; wherein a first dipole arm of the plurality of dipole arms of the horizontal dipole antenna is located on one side of the vertical dipole antenna and a second dipole arm of the plurality of dipole arms of the horizontal dipole antenna is located on an opposing side of the vertical dipole antenna; wherein the antenna balun of the vertical dipole antenna engages the antenna balun of the horizontal dipole antenna.
2. The antenna system according to claim 1 wherein the two antennas operate in the same wireless communications band or in different bands.
3. The antenna system according to claim 1 wherein the two antennas are fed via coaxial cables or via transmission lines.
4. The antenna system according to claim 1 wherein the two antennas are made of metallization on dielectric substrates of a sheet metal.
5. The antenna system according to claim 1 wherein the location of the first antenna and the second antenna in two mutually-orthogonal planes provides an antenna solution for wireless communications with high isolation between the first antenna and the second antenna, and polarization diversity in a minimum volume occupied.
6. An antenna system for multiple-input-multiple-output (MIMO) communication, the antenna system comprising: a first dipole antenna comprising a dielectric substrate, a plurality of dipole arms, an antenna balun, a metallization section and a feed point; and a second dipole antenna comprising a dielectric substrate, a plurality of dipole arms, an antenna balun, a metallization section and a feed point; wherein the first dipole antenna and the second dipole antenna are co-located with mutually-orthogonal polarization, wherein a first dipole arm of the plurality of dipole arms of the first dipole antenna is located on one side of the second dipole antenna and a second dipole arm of the plurality of dipole arms of the first dipole antenna is located on an opposing side of the second dipole antenna; wherein a first dipole arm of the plurality of dipole arms of the second dipole antenna is located on one side of the first dipole antenna and a second dipole arm of the plurality of dipole arms of the second dipole antenna is located on an opposing side of the first dipole antenna; wherein the antenna balun of the first dipole antenna engages the antenna balun of the second dipole antenna.
7. The antenna system according to claim 6 wherein the first dipole antenna lies in a horizontal plane and the second dipole antenna lies in a vertical plane extending outward from the first dipole antenna.
8. The antenna system according to claim 7 wherein the first dipole antenna operates in a first communication band ranging from 2.4 to 2.49 GigaHertz (GHz), and the second dipole antenna operates in a second communication band ranging from 5.15 to 5.85 GHz.
9. The antenna system according to claim 7 wherein the first dipole antenna operates in a first communication band ranging from 2.4 to 2.49 GHz, and the second dipole antenna operates in a second communication band ranging from 2.4 to 2.49 GHz.
10. The antenna system according to claim 7 wherein the first dipole antenna operates in a first communication band ranging from 5.15 to 5.85 GHz, and the second dipole antenna operates in a second communication band ranging from 5.15 to 5.85 GHz.
11. The antenna system according to claim 7 wherein the first dipole antenna operates in a first communication band ranging from 5.15 to 5.85 GHz, and the second dipole antenna operates in a second communication band ranging from 2.4 to 2.49 GHz.
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December 30, 2019
February 1, 2022
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